Quick Takeaways
- This page summarizes Feng-Ming Wang's Form 4 filing for AMBARELLA INC (AMBA).
- 9 reported transactions and 2 derivative rows are listed below.
- Filing timestamp: 04 Mar 2026, 17:36.
Feng-Ming Wang - 02 Mar 2026 Form 4 Insider Report for AMBARELLA INC (AMBA)
- Role
- CEO, Director
- Signature
- By: /s/ Michael Morehead, Attorney-in-Fact For: Feng-Ming Wang
- Issuer symbol
- AMBA
- Transactions as of
- 02 Mar 2026
- Net transactions value
- -$3,040,031
- Form type
- 4
- Filing time
- 04 Mar 2026, 17:36:32 UTC
- Previous filing
- 19 Dec 2025
- Next filing
- 19 Mar 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"Feng-Ming Wang filed Form 4 for AMBARELLA INC (AMBA) on 04 Mar 2026."
What Changed
- Previous filing in this sequence was filed on 19 Dec 2025.
- Current net transaction value: -$3,040,031.
Why This Matters
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Official SEC Source
Reporting Owners (1)
| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Wang Feng-Ming | CEO, Director | 3001 TASMAN DRIVE, SANTA CLARA | By: /s/ Michael Morehead, Attorney-in-Fact For: Feng-Ming Wang | 04 Mar 2026 | 0001558686 |
Transactions Table
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMBA | Ordinary Shares | Options Exercise | +50,000 | +6.5% | $41.36* | 818,979 | 02 Mar 2026 | Direct | ||
| transaction | AMBA | Ordinary Shares | Sale | $56,832 | -1,000 | -0.12% | $56.83 | 817,979 | 02 Mar 2026 | Direct | F1, F2 |
| transaction | AMBA | Ordinary Shares | Sale | $111,663 | -1,900 | -0.23% | $58.77 | 816,079 | 02 Mar 2026 | Direct | F1, F3 |
| transaction | AMBA | Ordinary Shares | Sale | $154,770 | -2,600 | -0.32% | $59.53 | 813,479 | 02 Mar 2026 | Direct | F1, F4 |
| transaction | AMBA | Ordinary Shares | Sale | $1,977,226 | -32,460 | -4% | $60.91 | 781,019 | 02 Mar 2026 | Direct | F1, F5 |
| transaction | AMBA | Ordinary Shares | Sale | $739,540 | -12,040 | -1.5% | $61.42 | 768,979 | 02 Mar 2026 | Direct | F1, F6 |
| transaction | AMBA | Ordinary Shares | Award | +53,203 | +6.9% | $0.000000* | 822,182 | 02 Mar 2026 | Direct | F7 |
Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMBA | Non-Qualified Stock Option (right to buy) | Options Exercise | -50,000 | -100% | $0.000000* | 0 | 02 Mar 2026 | Ordinary Shares | 50,000 | $41.36 | Direct | F8 | |
| transaction | AMBA | Performance Stock Units | Award | +53,203 | $0.000000* | 53,203 | 02 Mar 2026 | Ordinary Shares | 53,203 | Direct | F9, F10 |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
Explanation of Responses:
| Id | Content |
|---|---|
| F1 | The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on October 8, 2025. |
| F2 | The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $56.79 to $$57.7899 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4. |
| F3 | The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $58.16 to $$59.1599 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4. |
| F4 | The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $59.16 to $$60.1599 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4. |
| F5 | The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $60.21 to $$61.2099 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4. |
| F6 | The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $61.22 to $$62.2199 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4. |
| F7 | The restricted stock units vest at the rate of 1/12 per quarter commencing on March 15, 2026. |
| F8 | The shares vest at the rate of 1/42 per month commencing on March 15, 2016. |
| F9 | Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares. |
| F10 | Reporting person was granted an award of performance-based RSUs covering a target number of ordinary shares (the "Target RSU Number"). Pursuant to time-based vesting requirements, 100% of the Target RSU Number is scheduled to vest on March 15, 2029, subject to continued service requirements through such date. In addition, the number of shares subject to the RSUs may be decreased by up to 100% or increased by up to 150% of the Target RSU Number or may remain the same, based on the Company's total shareholder return and revenue growth rate over the period of February 1, 2026 through January 31, 2029. |